Wagon loader



June 19, 1928. 1,674,329

- R. c. HAlss WAGON LOADER Filed Oct. 30, 1926 2 Sheets-Sheet 1 p) INVENTOR. My

M44. in

A TTORNEYS Patented June 19, 128.

, n. a, I Pi a) a! 1 all i 51 C RAYMOND C. HAISS, OF NEW YORK, N. 2., AS SIGNOB TO GEORGE HAISS MANUFAOTUR- I ING CO. INC., OF NEW YORK, N. Y A CORPORATION OF NEW YORK.

. WAGON LOADER.

Application fi1ed ctober 30, 1926. Serial No. 145,142.

This invention relates to wagon loaders of the typeemploying an endless elevator,

' into the path of which the material to be loaded is moved by rotary digging elements 6 which are supported slightly above the surface of the ground over which the loader moves as it is propelled into the pile. of material to be loaded.

When wagon loaders of the class men 1 tioned are operated over rough ground or paved streets, it is desirable to maintain the digging elements so elevated that they w11l not be injured by striking the ground or pavement. As a'result of this necessitated elevation of the digging elements, more orv less material may be passed over and left in the path of the loader as it progresses into the pile of material to be loaded.

An object of the invention is to provide a simple, efficient and properly'supported clean-up scraper, cooperating with the dig-1 ging elements and projecting. slightly below the same so as to collect such material as is passed over by the digging elements and hold it in a position to elater acted upon by the digging elements and moved into the path of the elevator.

Other objects and advantages of the invention will become apparent from the following description taken in connection with the accompanying drawings in'which: Figure 1 is a side elevation of a wagon loader with the clean up scraper attached thereto Figure 2 is a fragmentary rear elevation o the loader as seen from the left in Figure 1; and Figure 3 is a perspective view of the clean-up scraper.

The wagon loader, herein shown, includes traction mechanism 5, of the endless-track type, upon which is mounted a frame 6, carrying a pair of supports? to which is pivotally connected an endless elevator 10, adapted .to be moved, from its full line position, shown in Figure 1, to its dot-and-dash line position, shown therein, through the instrumentality of a suitable raising device which includes a plurality'of links a and 6', pivotall connected to each other, the former of whic is pivoted to the frame 6, and the latter of which is secured to a shaft 0 journaled in the elevator 10 andv adapted. to be rotated through a'suitable manually operated means, such as a worm and worm wheel not shown. By rotating the shaft 0 in one direction,the links a and b are extended, as

passes into-a suitable loading hopper 14,

other vehicle.

shown in dot-and-dash lines in Figure 1, thus raising the elevator 10, and by rotating the shaft 0 1n an opposite direction, the links a and b are moved to their respective fullline position, thereby lowering the elevator to. its full-line position. Duringthe operation of the loader, the elevator 10 is positioned as shownin full lines in Figure 1, but when it is desired to transport the loader from place to place, the elevator is moved about its point of connection with the support 7 to the position indicated by dot-anddash lines. v

The elevator 10 includes a pair of sprocket chains 11, to which are connected a plurality of buckets 12,-adapted to receive the material to be loaded and carry it to the upper end of the elevator, at which point it i'sdumped into a chute 13, from which it supported upon the'frame 6 in a position to deliver its contents to a wa on, truck or The sprocket c ains 11 pass respectively over a pair of sprockets (not shown), carried by a shaft 19, suitably journaled in the upper end of the elevator, and sprockets 17 which arecarried by an elongated transverse shaft 20, suitably journaled 1n the lower end of the elevator 10.. The shaft 20 is provided with radially disposed digging elements 22, the digging elements at one side of the elevator having their faces oppositely inclined to theifaces of the digging elements at. the other side of the elevator, so that as the wagon loader is propelled into the material to be loaded, such material is moved .from both sides of the elevator toward the center line thereof and into the path of the elevator to be there collected by the buckets 12. The shaft 20 is rotated in the direction of the arrow A shown in Figure 1, so that the digging elements 22 impart-to the material a succession of upwardly directed impacts, as a result of which the material is moved slightly forward, with respect to the travel of the loader, as well as from both sides ofvthe" elevator'toward the path of travel thereof, as above explained.

The shaft 19 carries a sprocket 24 which a;

by the frame 6. The motor 31, which is adapted to operate the elevator 10 and thereby rotate the shaft 20 with is digging elements 22 in the direction of the arrow A shown in Figure 1, is also adapted for operative connection with the traction mechanism 5, throughsuitable gearing not shown, so that the wagon loader may be slowly moved into the pile of material to be loaded during operation of the elevator 10, as well as transported at faster speeds from placeto place when the elevator is positioned as shown in dotted lines in Figure 1. i

When the diggin elements 22 are operating in a spaced re ation to a pavement or other hard surface, a relatively small amount of material is passed over by the digging elements, especially when the materialto be loaded is relatively fine. Accordin to the present invention, for collecting t is material, the scraper 32 is provided at the rear ofthe digging elements 22 preferably in such a position that its lower edge projects a slight distance below the digging elements. This scraper 32 is of a length substantially equal to the length of the shaft 20, and is formed at its lower edge with an angular portion 33, which is re-enforced against bending by an angle iron 34, suitably secured thereto. The scra er 32 is cut away intermediate its ends, t us providing an opening 36, adapted to accommodate the lower end of the elevator 10, the marginal portions of the scraper adjacent the opening 36 being provided with angle irons 37, suitably connected thereto. To these angle irons are connected arms '38, provided at their upper ends with openings 39, adapted for the reception of bolts 40, which serve to pivotally connect the scraper 32 to-the lower end of the elevator 10 in a depending position, as shown in Figure 1, with the angular portion 33 of the scraper positioned at or relativel near the surface of the ground over whic the loader travels as it moves into the pile of material to be loaded. In order to'brace the scraper 32, and thus preventv undue movement of the same as it collects the material which has not been'moved into the path of the elevator, a pair of links 41 are provided.

These links may be of angle iron construetion, and are at their rear ends pivotally connected to a transverse shaft 42, suitably sup- -ported upon the traction mechanism 5.

These links 41 are adapted to be detachably connected-to the scraper 32 by means of pins 43, passing. through the forward ends ofthe links 41 and the upstanding flanges of suitable brackets 44, between which the forward ends of the links 41 are adapted to fit.

In order to'permit the elevator 10 to be moved to its extreme position, indicated in dotted lines in Figure 1, the links 41 may be disconnected from the brackets 44 b removing the pins 43, after which the lin s 41 the links 41 from the scraper 32 to positions they are supported by means of lugs 48 carried by the traction mechanism 5. Although it is necessary to detach the links 41 from the scraper 32 'to permit the elevator 10 to be moved to its extreme position, indi-. cated in dotted lines in Figure 1, the links 41 are of sufiicient length to permit any degree of adjustment of the elevator that may be required under ordinary operating conditions. In order to prevent accidental misplacement of the pins 43, when disconnecting ermit the elevator 10 to be moved to its horlzontal position indicated in Figure 1, the pins 43 may be carried by chains 49 whlch are riveted or otherwise secured to the scraper 32, as shown at 50, one end of each chain being connected to a cotter pin 51, which, when the pins are inserted as shown in Figure 3, serve to prevent their being dislodged, thereby always insuring a proper connection between the links 41 and the scraper 32 when the wagon loader-is in operation.

Having thus described the invention, what is claimed is:

1. In a wagon loader, a frame, an adjust able elevator, a scraper pivotally hung to said elevator and adapted to move therewith upon adjustment of said elevator, and a pair of links pivotallyconnected to said scraper and pivotally connected to said frame whereby the scraper is carried forward as the wagon loader is moved into the pile of material and whereby adjustment of the elevator is permitted.

2. In a wagon loader, a frame, an inclined elevator adapted to be moved to an inoperasaid elevator is moved toward its inoperative position. 1

3. In a wagon loader, a frame, an inclined elevator adapted to be moved on a horizontal axis to an inoperative position and having a plurality of digging elements adapted to move the material into the elevator as the loader is moved into the pile of material to j,

be loaded, a scraper at the rear of said digging elements, a pair of arms pivotally con-.

nected to said elevator and rigidly con nected to said scraper whereby said scraper aeaasae 3 is supported in a depending position with said elevator and adapted to freely swing respect to said elevator, and a pair of links therefrom when .the elevator is in i inoperpivotally connected to said frame and adaptative position, and a pair of links pivotally 15 ed for detachable pivotal connection to said connected to said frame and adapted to be 5 scraper. connected. to said scraper when said elevator 4. In a wagon loader, a frame, an inclined is in its inclined position whereby the elevator adapted to be moved to an inoperascraper isrestrained against swinging movetive position and provided with a plurality ment as theloader is moved into a pile of 20 of digging elements adapted to move the material to be loaded.

. material to be loaded into the elevator as the In testimony whereof, I have afiixed my loader is moved into the pile of material to signature to this s ecification. e be loaded, a scraper pivotally connected to R YMOI ID C. HAISS. 

